营养钵制钵机的设计 摘要：以前老式的制钵机体积庞大，结构复杂，制作成本高，效率比较低。我的设计以老式的制钵机为源头对其进行分析与改进。该机器每小时能生产2500个营养钵，制作出来的营养钵可以用于农作物的育秧以及移植。选用功率为1.1千瓦的电动机作为动力源，可以满足在农村或农场使用，不必担心电压不足的问题。本文重点对制钵机的传动系统和执行机构进行详细的分析与设计，对各个零部件认真的做了结构尺寸设计，并且受力较大的零部件进行了强度校核。包括了齿轮、皮带轮、轴等零件的校核。在设计时灵活使用标准件，大大缩短了设计的工作量并且在设计和制作时也能节约大量时间以及成本。本文的主要涉及内容包括：方案的确定、电动机的选择、各轴的转速及功率计算、皮带及齿轮的设计与计算还有轴的直径以及齿轮的尺寸设计计算。最终绘制出零件图与装配图。 关键词：制钵机；营养钵；传动系统 Desig
n of
nutritio
n bowl maki
ng machi
ne Abstract：I
n the past, the old bowl maki
ng machi
ne had large volume, complex structure, high productio
n cost a
nd low efficie
ncy. My desig
n takes the old bowl maki
ng machi
ne as the source to a
nalyze a
nd improve it. The machi
ne ca
n produce 2500
nutritio
n bowls per hour, which ca
n be used for seedli
ng raisi
ng a
nd tra
nspla
nti
ng of crops. The motor with power of 1.1KW is selected as the power source, which ca
n be used i
n rural areas or farms without worryi
ng about the problem of i
nsufficie
nt voltage. This paper focuses o
n the detailed a
nalysis a
nd desig
n of the tra
nsmissio
n system a
nd actuator of the bowl maki
ng machi
ne, carefully desig
ns the structure a
nd size of each part, a
nd checks the stre
ngth of the parts with larger force. I
ncludi
ng gear, pulley, shaft a
nd other parts of the check. Flexible use of sta
ndard parts i
n desig
n greatly reduces the workload of desig
n, a
nd also saves a lot of time a
nd cost i
n desig
n a
nd productio
n. The mai
n co
nte
nts of this paper i
nclude: the determi
natio
n of the scheme, the selectio
n of the motor, the calculatio
n of the speed a
nd power of each shaft, the desig
n a
nd calculatio
n of the belt a
nd gear, as well as the desig
n a
nd calculatio
n of the diameter of the shaft a
nd the size of the gear. Fi
nally, the part drawi
ng a
nd assembly drawi
ng are draw
n. key word: Bowl maki
ng machi
ne; Nutritio
n bowl; Drive system 目录 1绪论1 1.1选题的目的和意义1 1.2本课题在国内外的研究状况1 1.3课题研究的内容2 2营养钵制钵机的用途和设计要求2 2.1用途2 2.2设计要求2 3方案确定3 3.1工艺分析3 3.1.1手工制作的工艺3 3.1.2各运动机构的分析5 3.1.3运动机构的确定6 3.2轮盘的方案讨论7 3.3拟定机器的工作原理图8 3.4绘制运动循环图8 4运动设计与动力计算9 4.1电动机的确定9 4.1.1电动机的功率计算9 4.1.2确定电动机10 4.2确定各传动机构的传动比11 4.3计算各轴的转速和功率12 5结构设计14 5.1模孔转盘的结构和尺寸14 5.2转盘齿轮的结构和尺寸14 5.3曲柄滑块机构的结构尺寸15 5.4锥齿轮的结构尺寸18 5.5直齿圆柱齿轮的结构和尺寸20 5.6带轮的结构和尺寸20 5.7轴的结构设计23 5.8总装配图24 6主要零件的强度校核25 6.1转盘齿轮（齿轮5、齿轮6）的强度校核25 总结26 参考文献27 致谢28